https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86117
Damian Rouson <damian at sourceryinstitute dot org> changed:
What |Removed |Added
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CC| |damian at sourceryinstitute
dot or
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--- Comment #5 from Damian Rouson <damian at sourceryinstitute dot org> ---
Below is an example without the polymorphism employed in the original
submission. In gfortran 11, the warnings and notes now total 70 lines stemming
from a single executable line. In my opinion, this volume renders -Wall nearly
unusable because of the time it can take to sift out the truly useful
information from the spurious information.
± cat copious-warnings.f90
module results_interface
type results_t
real, allocatable :: output(:)
end type
contains
subroutine max_filtered_normalized_distance(rhs)
type(results_t) rhs
real, allocatable :: rhs_filtered(:)
rhs_filtered = rhs%output
end subroutine
end module
± gfortran -c -Wall copious-warnings.f90
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.offset’ is used uninitialized [-Wuninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].lbound’ is used uninitialized [-Wuninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].ubound’ is used uninitialized [-Wuninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].lbound’ may be used uninitialized
[-Wmaybe-uninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].ubound’ may be used uninitialized
[-Wmaybe-uninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].ubound’ may be used uninitialized
[-Wmaybe-uninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
copious-warnings.f90:9:0:
9 | rhs_filtered = rhs%output
|
Warning: ‘rhs_filtered.dim[0].lbound’ may be used uninitialized
[-Wmaybe-uninitialized]
copious-warnings.f90:8:40:
8 | real, allocatable :: rhs_filtered(:)
| ^
note: ‘rhs_filtered’ declared here
± gfortran --version
GNU Fortran (GCC) 11.0.0 20200804 (experimental)
